我正在映射一个数组，对于新对象的返回值之一，我需要进行异步调用。varfirebaseData=teachers.map(function(teacher){return{name:teacher.title,description:teacher.body_html,image:urlToBase64(teacher.summary_html.match(/src="(.*?)"/)[1]),city:metafieldTeacherData[teacher.id].city,country:metafieldTeacherData[teacher.id].country,state

我正在映射一个数组，对于新对象的返回值之一，我需要进行异步调用。varfirebaseData=teachers.map(function(teacher){return{name:teacher.title,description:teacher.body_html,image:urlToBase64(teacher.summary_html.match(/src="(.*?)"/)[1]),city:metafieldTeacherData[teacher.id].city,country:metafieldTeacherData[teacher.id].country,state